Weft feeler mechanism for looms.



S. S. JACKSON.

WEFT FEELER MECHANISM FOR LOOMS.

APPLICATION FILED APR.29. 1916.

1 ,301 ,082, Patented Apr. 15, 1919.

5 SHEETS-SHEET lflzzzenzar laziness, iy g M' S. S. JACKSON. WEFT FEELERMECHANISM FOR LOOMS. APPLICATION FILED APR-29. 1916.

1,301 ,082, Patented Apr. 15, 1919.

5 SHEETSSHEET 2.

[nae/2 for ll/zzness X S. S. JACKSON.

WEFT FEELER MECHANISM FOR LOOMS.

APPLICATION FILED APR. 29. 1915.

1,301,082, I Patented Apr. 15,1919.

5 SHEETS- SHEET 3- s'. s. JACKSON. WEF'T FEELER MECHANISM FOR LOOMS.APPLICATION FlLED APR.29, I916.

130L082, Patented Apr. 15,1919'J 5 SHEETS-SHEET 4.

M Eailllil W HIIIU 5:21:21: \lllllllllllll [72 veizfor- S. S. JACKSON.

WEFT FEELER MECHANISM FOR Looms. APPLICATION man APR.29.1916.

1,301,082, Patented Apr. 15,1919.

5 SHEETS-SHEET 5.

SIMEON S JACKSON, 01? BOSTON, MASSACHUSETTS, ASSIGNOR TO THE STAFFORDCOMPANY, OF READVILLE, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

WEFT FEELER MECHANISM FOR LOOMS.

Specification of Letters Patent.

Patented Apr. 15, 1919.

Application filed April 29, 1916. Serial No. 94,334.

To all whom it may concern Be it known that I, SIMEON S. JACKSON, asubject of Great Britain, residing at Readville, Boston, in the countyof Suflolk, State of Massachusetts, have invented a certain new anduseful Improvement in lVeft Feeler Mechanism for Looms, of which thefollow ing is a specification, reference being had therein to theaccompanying drawings.

The invention has relation, in general, to the depletion-detectingmechanisms, commonly termed feeler mechanisms, which are employed inlooms for the purpose of fore stalling complete exhaustion of the supplyof weft or filling contained in the working shuttle upon the lay of aloom. These mechanisms, in general, are contrived to indicate, or call,or initiate, as it variously is termed, a change in the operation of theloom, upon detecting that the progressive depletion of the said supplyhas reached a stage decided upon as a minimum. The change involves insome cases automatic re plenishing of the working supply of weft orfilling without stoppage of the loom; in other cases, it involvesstoppage of the loom Without automatic replenishment; in still others itinvolves stoppage of the loom, with automatic replenishment during thestoppage, followed by automatic restarting of the loom.

The invention has relation more especially to feeler mechanisms of themeasuring class. A feeler mechanism of this class is arranged to callthe prearranged change in the operation of the loom in which it isemployed when, through its measuring action, it has detected that theresidue of weft or filling upon the bobbin or other weft orfilling-carrier in the shuttle has become reduced to the predeterminedminimum thickness.

The invention is embodied in measuring weft or filling feeler devicescomprising a primary contact-member constituted by a feeler-member orfinger that is moved by the pressure of the shuttle-contained weft orfilling-supply, at least during the earlier stages of said supply; asecondary, assisting or coadj'utor', contact-member constituted by asecond feeler-member or finger that is given by the pressure of the saidweft or filling-supply a movement differentially correlated with that ofthe'primary contactmember; a controller-rest that is actuated throughthe movement of the said primary contact-member, and in additioncontrolled by the said secondary or coadjutor contactmember and arrangedto coact therewith in measuring the differential; anda controller forthe devices that call a change in the operation of the loom. With theseelements I combine means which, so long as the portion of theshuttle-contained weft. or filling-supply that acts against the primarycontactmember exceeds a certain diameter, operates through thecontroller to prevent the parts that are controlled by the controllerfrom being called into action. This means consists, preferably, ingoverning means for the controller-rest, cooperating with the latter inmanner to secure the stated result. This. feature of invention preventsa cylindrical fulldiameter portion of the mass of weft or filling thatis contained in the shuttle from having the same effect as thepractically emptied filling-carrier in bringing about a change in theoperation of the loom. The means of governing the controller-rest, andthe specific mode of operation thereof, vary in the case of differentembodiments of the principles of the invention. I

Briefly stated; during the earlier stages of the weft or filling-supplythe controller-rest governor governs the controller-rest, and therebythe controller, in such manner that the parts which are controlled bythecontroller are prevented from being called prematurely into action tocall a change in the operationof the loom. Such means renders theworking of the feeler devices an idle action at each movement throughoutthe earlier stages of the weft-supply, and until only a small amount ofweft or filling slightly exceeding the predetermined minimum remainswithin the shuttle. After the controller-rest governing means has ceased'to act, the secondary, assisting, or coadjutor contactmember cooperateswith the controller-rest in the functions=of (1) measuring the finalstages of the weft-supply, (2) detecting reduction of the final residueto the predetermined minimum, and through the controller rendering theparts that are controlled by the latter operative to bring about achange in the operation of the loom.

The invention is capable of being reduced to practice in various waysand by various mechanical constructions.

In thedrawings,

Figure 1 is a perspective view of an illustrative embodiment of theinventionin connection with devices of well-known character' for callinga change in the operation of a loom.

Fig. 2 is an end elevation of the outer portion of the feeler mechanismof Fig. 1, with certain parts in section.

Fig. 3 is a plan view of the parts that are represented in Fig. 1, onlya portion of the length of the controller-rockshaft being shown.

Figs. 4 and 5 are views similar to Figs. 2 and 3, but with the additionof the wefthammer, catch, and a portion of the arm at the inner end ofthe controller-rockshaft, and illustrating the action at the beat-upduring the full-diameter stage of the supply of weft or fillingcontained in the shuttle on the lay.

Figs. 6 and 7 are views similar to Figs. 4 and 5, but illustrating theaction at the beatup during the tapered residue stage.'

Figs. 8 and 9 are views illustrating the action at the beat-up when thepredetermined minimum residue has been reached.

Having reference to the drawings,

In the illustrative embodiment that is shown in the said figures, thecontact-members constituted by the feeler-members or fingers 1 and 2are, for convenience, on the order of those shownand described in U. S.Letters Patent No. 940,600 granted Nov. 16, 1909 upon my application.That is to say, they are in this instance in the form of slides whichare mounted side by side in guides provided in upstanding portions of asmall feeler-stand 32. Substantially as in the said Letters Patent, theyare held in rearward positions, normally, by means of expanding spiralsprings 31 and 41, surrounding their forwardly-extending stems 'orshanks 3 and 4, and confined between the upstanding guide-lug 32 at thefront end of said feeler-stand and the front ends of the body-portionsof the feeler-members or fingers. The said rearward positions aredetermined through the contact of lateral projections 1 2*, from thebodies of the feelermembers or fingers with the unstanding lug 32 at therear end of the said feelerstand. As usual in feeler. mechanisms, therear ends of the feeler-members or fingers l and 2 are designed to enterthe shuttle 0n the lay from the front as the lay goes forward. Boththereof are designed to be acted upon by the Weft or filling-mass. Intheir normal positions the feeler-members or fingers await the pressureor blow of the contents of the shuttle against their rear ends. Theyboth are moved forward a short distance by such pressure or blow.

A special feature of the feeler-members or fingers 1, 2, is the factthat, while they occupy the said normal positions, the feelermember orfinger 1 projects a little farther "rearward (as for instance aboutone-eighth of aninch) than the feeler-member or finger 2, as indicatedin Fig. 3. The difierence is somewhat greater than the predeterminedminimum thiclmess,'i. e., the thickness of the final remainder of weftor filling in the filling-carrier in the shuttle or fingers at thebeat-up of the lay as in Fig.

5 will cause the member 1 to begin to move forward before member 2 does,and will shift member 1 relative to member 2 (oneeighth of an inch).

The form, construction, mode of mounting the feeler-members or fingers,and manner of applying spring-pressure, mayvary more or less inpractice. It is not essential in all cases that they should be slides.

The controller-rest 7 is a two-part finger that is hung by means of itsbody-portion 8 upon a pivot-pin 9 projecting transversely from anupstanding portion 10 at the front end .of the feeler-member 1.' Therebythe controller-rest is connected pivotally at its forward end with thefeeler-member l, and supported at such end. The downturned tip 71 of therear end of the controller-rest lies normally upon the top surface ofthe feeler member 2 at the rear of the rear end of an opening 5 in thelatter feeler-member. By such surface of feeler-member 2 thecontroller-rest is supported normally at its free end, as in Fig. 2, forinstance. 80 long as the free end of the controller-rest is thussupported, it is locked by the secondary two parts of thecontroller-rest overlap each other for portions of their length, and areconnected together by means of a clamping screw 7 the stem of whichoccupies a longitudinal slot 7 in the rear part of the controller-rest.By means of an adjusting screw 7 working in upstanding lugs with whichthe two parts of the controller-rest are furnlshed, the rear part may beadjusted upon and relative to the said body-portion 8, so

as to vary the extent to which the tip 71 projects rearward beyond therear end of the opening 5 in the secondary feeler-member. By thisadjustment the extent 'of relative displacement of feeler-member 1 withrespect to feeler-member 2 necessary to carry tip 71 forward beyond therear end of opening 5 and thereby unlock the controller fromfeeler-member 2 may be varied.

The controller 44 consists mainly of a rockshaft that is mounted inbearings 441, 441, Fig. 1, provided in connection with the supportingstand 442 on which the small feeler-stand 82 is mounted. For cooperationwith controller-rest 7, the outer end of the controller rockshaft hasmounted thereon fixedly an arm 13 formed with a crank-pin 11 which liesupon the controller-rest 7 Through the engagement between thecontroller-rest and the crank-pin the crank-pin 11 is supported and thecontroller is locked from turning in the direction of the arrow shown inFig. 1 upon its rockshaft, so long as the controller-rest itself remainslocked through the engagement of its tip 71 with the top surface offeeler-member 2.

The controller operatively controls the devices by whicha change in theoperationof the, loom is called, by means of an arm 443 mounted fixedlyon the inner end of the controller rockshaft and provided with acrank-pin 444. The said crank-pin works in a slot 445 in a catch or dog21 of usual .character forming an element of the said devices. The saidcatch or dog in this instance is hinged at 22, Fig. 1, to the arm 23forming a part of devices for controlling loom-stopping mechanism andmechanism for automatically effecting replenishment and restarting theloom. It is furnished with an engaging portion, shown in Fig. 1 as alateral spur 24, and in Figs. 4, 6 and 8 as a tooth or shoulder 24", forcoaction with a suitable striker. In the present in stance, asordinarily is the case in practice, the weft-hammer 26 is utilized asthe striker, it being provided with a 'shoulder 25 adapted to engage thesaid spur, tooth or shoulder in case the catch or dog should occupy itslowered position as the weft-hammer goes forward, for the purpose ofpushing the catch or dog and arm forward and thereby bringing about thechange in, the operation of the loom.

hile the controller-rest remains locked by the secondary feeler-member,that is to say normally, the controller is locked in a position whichholds the catch or dog elevated so that its engaging portion 24 or 24 isabove the path in which the shoulder 25 of the weft-hammer travels asthe weft-hammer swings forward. While this remains the case, theweft-hammer makes its forward stroke without engaging with the catch.The catch or dog in Fig. 1 is in the said elevated position, although onaccount of the perspective this fact does not show with entireclearness. The weight of the catch 21 and of crank-arms 443 and 13, andthe cooperating tension of a spring 33 connected with the controllerrockshaft, tend to turn the controller in the direction indicated by thearrow thereon in Fig. 1, and. operate to turn the controller in suchdirection when it is free to turn, to thereby lower the catch 21 intoposition to be engaged by the shoulder 25 of the weft-hammer. Thisturning of the controller is prevented as long as the controller-restremains locked as aforesaid. An elongated arch or bail 72 rising fromthe controller-rest 7 extends above and over the crank-pin 11 of thecontroller, for convenience in keeping the two parts in workingrelations with each other, and also for enabling the weaver to lift thecontrollerrest so as to withdraw its tip 71 from the opening 5, when itis desired to do so manually, simply by taking hold of some convenientpart of the controller and rocking the latter in the direction oppositeto that indicated by the arrow in Fig. 1.

The particular character and construction of the controllerand thedevices controlled thereby for calling a change in the operation of aloom are not material, so far as the invention is concerned.

The controller-rest governor 15 of this embodiment is a small cross-barthat is fixed upon the rear portion of the stand 32, between the tops ofthe feeler-members and the under side of the body-portion 8 of thecontroller-rest 7. Such cross-bar serves incidentally the secondaryfunction of keeping the feeler-members from rising out of theirguideways in the said portion of stand 32. For cooperation with thecontrollerrest governor, the bodyportion of the controller-rest isformed at its under side with a cam-projection 14, the saidcam-projection having its forward portion inclined to facilitate ridingup .upon the governor 15 as the forward movement of feeler-member 1carries the controller-rest from its position in Fig. 2 to one placingthe said camprojection momentarily upon the top of said governor, as inFig. 4, for instance. Having reference now to the operation of thedevices which have been described, and the principles which are involvedin such operation,

As is. well known, the weft or filling yarn carried" by afilling-carrier occupying a loom-shuttle is drawn 01f from thesaidcarrier in the direction of the length of the latter past'the freeend or tip of the filling-carrier, and issues from the shuttle through adelivery-eye with which the shuttle is furnished near the adjacent endthereof. To provide for the yarn'being thus drawn oil past the free endor tip of the filling-carrier. weft or filling is wound uponfilling-carriers with a so-called cone-wind, as shown in various viewsof the drawing, namely in successive layers resembling conical ortapering shells, one outside another, until the required length of woundmass is produced. The said wound mass is cylindrical eXteriorly for themain portion of'its length, and has a conical end facing toward the tipof the filling-carrier. See Fig. 5. WVhen the spiral coils or turnsconstituting the exposed tapering layer of the coneshaped end are drawnoff, another similar layer is uncovered, and so on. The progressivewithdrawal of the said layers sh'ortens the wound massprogressively'until the yarn has been paid off from the filling-carrierback to the head 'or base-end of the latter. Fig. 7 shows the taperingresidue which remains when the paying-out of the weft or filling has"progressed sofarthat the main cylindrical portion of the wound mass hasdisappeared, and Fig. 9 shows a small wound portion of weft or fillingwhich remains upon the filling-carrier just prior to completeexhaustion.

When the shuttle is supplied with a filled filling-carrier, acylindrical portion of the wound mass' of weft or filling is pressedagainst the feeling ends of the two feelermembers 1 and 2 at everyfeeling action, as illustrated in Figs. 1 and 5, during the .preliminarystage of the weft or filling-supply that continues while the portion ofthe filling-mass that touches the feeling ends of the feeling-members isof fulldiameter. This preliminary stage, which I call the fulldiameterstage, is a stage of long duration. It continues from the time when afresh filling-carrier loaded nearly to its. tip with weft or filling isbrought into action, to the time when the mass has become reduced inlength so-that the base of the cone or taper of the remainder or residueis just about to be caused to extend to a pointwhich as the lay goesforward will touch the feeling-end of the feeler-member 1. Thefeeler-memb'ers 1 and 2 are located in such a position in the loom thatthey feel against the filling-mass at the usual place for feeling.action, namely close .to the enlarged head or base of thefilling-carrier. Consequently, as indicated in Fig. 7 a very largeproportion of the fillingmass will have been paid out before the cone ortaper of the remainder or residue is exposed to feeler-member 1'.

In each feeling action during the fulldiameter stage the contact of thecylindrical filling-mass with the rearwardly-projecting feeler-member 1moves the latter member forward relative to feeler-member 2, therebyshifting the controller-rest forward so as to move its tip 71 forwardpast the rear end of opening 5, thereby unlocking the controllerrestfrom feeler-member 2. This would permit the controller to operate tocall the change in the operation of the loom if provision were not madethereagainst. Such change would be unnecessary. A change called at atime when the filling-mass occupying the shuttle is of anything like theproportions of that shown by Figs. 5 and 6, or in-fact at any timeduring the full-diameter stage, would be objectionable and undesirable.Accordingly, during the full-diameter stage the' controller-restgovernor '15 'is fin a'ctiofias'shown in Fig. AL A. full orsubstantially full-diameter of weft or filling supply operates atthebeat-up'of the lay to drivefeeler-me'mber l and the controllerrest 7so ,far forward that the cam-projection 145 rides up on thecontroller-rest governor 15 as shown in the view. I Consequently, at thebeat-up, the controller rest is sk d in ne et p siti n, a d. thereby thecontroller'is lockedina position inwhich the engaging portion of thecatch or dog 21 is above and clear of the path of the shoulder 25 of theforwardly advancing weft-hammer.

As a result of the action of the controllerrest' governor during thefull-diameter stage, the differential movement of the feeler-members bywhich the feeler-member 1 is driven forward first, so that it movesforward .an amount represented by the extent to which it normallyprojects rearward beyond the feeler-member 2, before the feeler-member 2begins to move, is without either useful or harmful result orconsequence. It occurs merely as an outcome of the difference in theposition of the two feeling ends, and the movement of thecontroller-rest tip 71 into a position over the opening 5 of thefeelermember 2 as in Fig. 4, is taken care of by means of thecontroller-rest governor so that the controller-rest is given anelevated position. Y

When the weft or filling begins to pay out from the portion of the woundmass that makes contact with feeler-member 1, the extent-to which suchmember is pushed forward will diminish and the difference between thestrokes of the two feeler-members will decrease until the taperedresidue stage in the consumption or paying-out ofthe weft or fillingfrom the shuttle is reached. Figs. 6

and 7 show what I term the tapered residue stage. It will be perceivedthat in this stage, at the beat-up of the lay, the'largest diameter ofthe residue or remainder of'the filling-mass is presented against thefeelermember 2, while the conical or tapering portion of the saidresidue or remainder'is presented against the feeler -member 1. Asmaller diameter, therefore, is presented to the feeler-member 1 thanthe diameter which i as the filling-mass is carried forward toward thefeeler-members it will touch the feeling ends of the two memberssimultaneously, or approximately so. For a time, therefore, the twofeeler-members will be driven forward in unison by the pressure of thefilling-mass against their feeling ends, with the tip of controller-rest7 lying upon the top surface of the feeler-member 2 at the rear ofopening 5 and supported thereby. While this continues, the controller islocked by feelermember 2 in the position in which it supports the catch21 out of the path of the engaging shoulder of the weft-hammer. At thisstage, the decreased diameter of the portion of the filling mass whichacts against the feeler-member 1 reduces the extent of the forwardmovement of said feeler-member and the controller-rest 7 pivotedthereto, so that the cam-projection 14 of the controller-rest does nottouch the controllerrest governor 15. The controller-rest governor doesnot act and is not needed to act.

As the filling continues to be drawn off from the tapered residue thevarious diameters of the latter become smaller. The cone or taperdisappears, and shortly the surface of the filling carrier itself inline with the feeler-member 1 is uncovered and at the beat-up makescontact with the said feeler-member, as in Fig. 9, which shows theminimum stage, while the small bunch of filling still remaining oppositethe feelermember 2, and wound upon the filling-carrier at such pointexpressly to serve at this stage in the consumption of the filling-mass,

makes contact with the feeler-member 2, as

in Figs. 8 and 9. A measuring action begins just as soon as thedifference in position forwardly, of the two surfaces touched by the twofeeler-members, begins to grow less than the normal extent of projectionof the feeler-member 1 rearward of feeler-memher 2. It is accompanied bya resumption of the differential movement of the two feelers, thefeeleremember 1 leading the feeler-member 2 as the two feeler-membersare driven forward at each feeling action. This differential movementproduces at each successive beat-up a movement of the tip 71 ofcontroller-rest 7 forward upon the top surface of feeler-member 2, andtoward the edge of theopening 5. The relative movement increases inextent at each successive beat-up, in proportion as the remainingfilling diminishes in diameter, and consequently the tip 71 approachescloser and closer toward the edge of the opening 5,, until finally, whenthe relative diameters of the filling-carrier where it touchesfeelermember 1, and of the remaining bunch of filling, become suchthatthe relative movement of the feeler-member 1 forward with respect tofeeler-member 2 carries the said tip 71 of the controller-rest 7 off theedge of the opening 5, as in Figs. 8 and 9, the controller-rest andcontroller will be unlocked, and under the influence of the spring 33and gravity the controller will rock 'so as to place the engagingportion 24 or '24 of catch21 in position to be engaged by shoulder 25 ofthe weft-hammer. Thereby the said catch and the arm. 23 will be operatedso as to bring about the prearranged change in the operation of theloom.

Through adjustment of the tip-carrying part .of the controller-rest bymeans of screw 7 so as to cause tip 71 to la-p rearward of the rear edgeof opening 5 more or less, the

release of the controller-rest may be caused i to take place sooner orlater, according as it is desired to leave more or less filling upon thefilling-carrier when the change is called.

Ordinarily in the operation of a 100m having the just described feelermechanism applied thereto, while the lay is rearward the weft-hammeralso occupies a rearward position with the shoulder 25 a short distance,somewhere about a quarter of an inch, to the rear of the engagingportion 24 or 24" of the catch 21. The weft-hammer remains in thisposition while thelay goes forward. As the lay approaches front centerthe filling-mass contained in the shuttle in the shuttle-box of the laystrikes the rear ends of the feelermembers and drives them forward, thecontact with the full diameter of filling-mass taking place under theusual adjustments when the lay is somewhere about a half an inch orthree-eighths of an inch back from the most forward point reached by it.When the lay is about a quarter of an inch back from the said mostforward point, the wefthammer begins to move forward. The contact of thecam-projection 14 of the controller-rest with the cross-bar 15 in thefinal portion of the movement of the lay throws the controller-restupward, gives a quick turn to the controller, and also throws the catch21 upward, and the continued forward movement of the weft-hammer carriesthe shoulder 25 forward under the engaging portion 24 or 24 of the catch21 while'the catch is thuselevated. As the weft-hammer goes forwardunder the engaging portion 24 or 24 the top of the weft-hammer behindthe shoulder 25 bears against the underside of the said engaging portionso as to support the catch until the rearward movement of theweft-hammer withdraws the shoulder 25 out from under the spur. Theshoulder 25 passes forward under the engaging portion 24 or 24 of thecatch after the cam-projection 14 has passed forward upon thecontroller-rest governor 15 and while it is either resting upon the topof the said governor or poised by momentum slightly above the same. Theweft-hammer follows the lay rearward, but the top of the weft-hammerdoes not pass out from under the spur of the catch, and continues tosupport the catch andthe controller, until the lay has moved rearward aconsiderable distance. i The controller-rest governor has two functions.One thereof is to prevent the feeler devices from acting to call achange in the operation of the loom at any time during the full diameterstage (shown in Figs. 4 and 5) of the filling-mass on the carrier in theshuttle. The other function is to raise the controller-rest sufficientlyhigh as it goes forward with the feeler-member 1 to insure that, as thesaid-feeler-member and the controller-rest are driven rearward again bythe action of the sprin 31 as the lay and shuttle retreat rearward y,the tip 71 of the controller-rest shall land on the top surfaceofthefeeler-member 2 at the rear of the opening 5, and not drop into thesaidopening; 7

What is claimed as the invention is,

1 Weft or filling feeler devices comprising a primary contact-memberconstituted by a feeler-member or finger that is moved by the pressureof the shuttle-contained weft or filling-supply, at least during theearlier stages of said supply; a secondary, assisting orcoadjutor,contact-member constituted by; a second feeler-member or finger that isgiven by the pressure of said weft or fillingsupply a movementdifferentially correlated with that of the primary contact-member;

, a controller-rest that is actuated through the movement of the saidprimary contact- 'member, and in additioneontrolled by the saidsecondary or coadjutor contact-member and arranged to coact therewith inmeasuring the diflerential; and a controller for the devices that call achange in the operationof the loom. v p

,2. Weft or filling feeler devices comprising'a primary contactmemberconstituted by a feeler-member or finger that is moved by the pressureof the'shuttle-contained weft fillingsupp ly, at least during theearlier sta es; Qt sai seria ly sec ndary, as t called into action."

are controlled bythe latter f called into action.

3. Weft or filling feeler devices comprising a primary contactmemberconstituted by a feeler-meinber or finger that is moved by thepressure of the shuttle-contained weft or filling-supply, at leastduring the earlier stages of said supply; a secondary assisting orcoadjutor, contact-member constitutedv by a second feeler-member orfinger thatg s given by the pressure of said weft or fillingsupply amovement differentially correlated with that of the primarycontact-member;

a controller-rest that is actuated through ,7 the movement of the saidprimary contactmember, and in addition controlledf'by the said secondaryor .coadjutor contaot memher and arranged to coact therewith jlinmeasuring the diiferential; andfafcontroller of weft or filling-supplythat" acts against the primary contactmember,exceeds, a certaindiameterfthe devicesft-hatjfarei controlled by the controller areprevented a 4'. Weft-feeler mechanism comprising idew.

vices for calling 'a'change, a controllerfthere for, a feeler-mem'ber, acontroller 'rest actuated by the said feeler-member, a secondary vfeeler memben controlling saidcontrollerrest, and means unconnected withsaidisee ondary feeler-member acting through :"said controller rest torender said ,devi'cesinoperative to jgall "a change while thediaineterof the fillingginass exceeds a predetermined amount.,. v g

5. Weft-feeler mechanism comprising" devices for calling a" change,acontro'ller for such: devices, a 'feelenmember; a controllerrestactuated by the said] r set-member, a secondary feeler zrnelmberfcontrolling said controller-rest in measuring the final stages of theWeft-supply, detecting reduction to the predetermined minimum, andrendering the controller operative.

7. Weft-feeler mechanism comprising devices for calling a change, acontroller therefor, a feeler-member, a controller-rest actuated by thesaid feeler-mcmber, and a secondary feeler-member controlling saidcontroller-rest, and including means engaging with said controller-restto render said devices inoperative to call a change when the movementcommunicated by the filling-mass to the first-mentioned feeler-memberexceeds a predetermined amount,

8. Weft-feeler mechanlsm comprising devices for calling a change, acontroller for such devices, a feeler-member, a controllerrest actuatedby the said feelermember, a

' secondary feeler member controlling said controller-rest, and meansacting through said controller-rest to render said devices inoperativeto call a change by filling-produced movement of the first mentionedfeeler-member exceeding a predetermined amount.

In testimony whereof I aflix my signature in presence of two Witnesses.

SIMEON S. J ACKSON. Witnesses CHAS. F. RANDALL, ELSIE A. BARTZSCH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patentn,

Washington, D. G. v

